started work on fuse implementation
This commit is contained in:
parent
e4f693ed3e
commit
9ad94e9634
4 changed files with 731 additions and 1 deletions
12
fat-fuse/Cargo.toml
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12
fat-fuse/Cargo.toml
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[package]
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name = "fat-fuse"
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version = "0.1.0"
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edition = "2024"
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[dependencies]
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anyhow = "1.0.98"
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fat-bits = { version = "0.1.0", path = "../fat-bits" }
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fuser = "0.15.1"
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libc = "0.2.174"
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log = "0.4.27"
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thiserror = "2.0.12"
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584
fat-fuse/src/lib.rs
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584
fat-fuse/src/lib.rs
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@ -0,0 +1,584 @@
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use std::ffi::c_int;
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use fat_bits::dir::DirEntry;
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use fat_bits::{FatFs, SliceLike};
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use fuser::{FileAttr, Filesystem};
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use libc::{ENOSYS, EPERM};
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use log::{debug, warn};
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#[allow(dead_code)]
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fn dir_entry_to_attr(dir_entry: &DirEntry, ino: u64) -> FileAttr {
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FileAttr {
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ino,
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size: dir_entry.file_size() as u64,
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blocks: todo!(),
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atime: todo!(),
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mtime: todo!(),
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ctime: todo!(),
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crtime: todo!(),
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kind: todo!(),
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perm: todo!(),
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nlink: todo!(),
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uid: todo!(),
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gid: todo!(),
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rdev: todo!(),
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blksize: todo!(),
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flags: todo!(),
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}
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}
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#[allow(dead_code)]
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pub struct FatFuse<S: SliceLike> {
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fat_fs: FatFs<S>,
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uid: u32,
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gid: u32,
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}
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impl<S: SliceLike> FatFuse<S> {
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pub fn new(data: S) -> anyhow::Result<FatFuse<S>> {
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let uid = unsafe { libc::getuid() };
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let gid = unsafe { libc::getgid() };
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let fat_fs = FatFs::load(data)?;
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Ok(FatFuse { fat_fs, uid, gid })
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}
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}
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impl<S: SliceLike> Filesystem for FatFuse<S> {
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fn init(
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&mut self,
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_req: &fuser::Request<'_>,
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_config: &mut fuser::KernelConfig,
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) -> Result<(), c_int> {
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Ok(())
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}
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fn destroy(&mut self) {}
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fn lookup(
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&mut self,
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_req: &fuser::Request<'_>,
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parent: u64,
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name: &std::ffi::OsStr,
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reply: fuser::ReplyEntry,
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) {
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warn!("[Not Implemented] lookup(parent: {:#x?}, name {:?})", parent, name);
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reply.error(ENOSYS);
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}
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fn forget(&mut self, _req: &fuser::Request<'_>, _ino: u64, _nlookup: u64) {}
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fn getattr(
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&mut self,
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_req: &fuser::Request<'_>,
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ino: u64,
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fh: Option<u64>,
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reply: fuser::ReplyAttr,
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) {
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warn!("[Not Implemented] getattr(ino: {:#x?}, fh: {:#x?})", ino, fh);
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reply.error(ENOSYS);
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}
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fn setattr(
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&mut self,
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_req: &fuser::Request<'_>,
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ino: u64,
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mode: Option<u32>,
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uid: Option<u32>,
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gid: Option<u32>,
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size: Option<u64>,
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_atime: Option<fuser::TimeOrNow>,
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_mtime: Option<fuser::TimeOrNow>,
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_ctime: Option<std::time::SystemTime>,
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fh: Option<u64>,
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_crtime: Option<std::time::SystemTime>,
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_chgtime: Option<std::time::SystemTime>,
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_bkuptime: Option<std::time::SystemTime>,
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flags: Option<u32>,
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reply: fuser::ReplyAttr,
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) {
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debug!(
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"[Not Implemented] setattr(ino: {:#x?}, mode: {:?}, uid: {:?}, \
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gid: {:?}, size: {:?}, fh: {:?}, flags: {:?})",
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ino, mode, uid, gid, size, fh, flags
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);
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reply.error(ENOSYS);
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}
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fn readlink(&mut self, _req: &fuser::Request<'_>, ino: u64, reply: fuser::ReplyData) {
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debug!("[Not Implemented] readlink(ino: {:#x?})", ino);
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reply.error(ENOSYS);
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}
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fn mknod(
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&mut self,
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_req: &fuser::Request<'_>,
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parent: u64,
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name: &std::ffi::OsStr,
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mode: u32,
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umask: u32,
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rdev: u32,
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reply: fuser::ReplyEntry,
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) {
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debug!(
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"[Not Implemented] mknod(parent: {:#x?}, name: {:?}, mode: {}, \
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umask: {:#x?}, rdev: {})",
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parent, name, mode, umask, rdev
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);
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reply.error(ENOSYS);
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}
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fn mkdir(
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&mut self,
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_req: &fuser::Request<'_>,
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parent: u64,
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name: &std::ffi::OsStr,
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mode: u32,
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umask: u32,
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reply: fuser::ReplyEntry,
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) {
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debug!(
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"[Not Implemented] mkdir(parent: {:#x?}, name: {:?}, mode: {}, umask: {:#x?})",
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parent, name, mode, umask
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);
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reply.error(ENOSYS);
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}
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fn unlink(
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&mut self,
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_req: &fuser::Request<'_>,
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parent: u64,
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name: &std::ffi::OsStr,
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reply: fuser::ReplyEmpty,
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) {
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debug!("[Not Implemented] unlink(parent: {:#x?}, name: {:?})", parent, name,);
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reply.error(ENOSYS);
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}
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fn rmdir(
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&mut self,
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_req: &fuser::Request<'_>,
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parent: u64,
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name: &std::ffi::OsStr,
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reply: fuser::ReplyEmpty,
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) {
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debug!("[Not Implemented] rmdir(parent: {:#x?}, name: {:?})", parent, name,);
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reply.error(ENOSYS);
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}
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fn symlink(
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&mut self,
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_req: &fuser::Request<'_>,
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parent: u64,
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link_name: &std::ffi::OsStr,
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target: &std::path::Path,
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reply: fuser::ReplyEntry,
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) {
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debug!(
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"[Not Implemented] symlink(parent: {:#x?}, link_name: {:?}, target: {:?})",
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parent, link_name, target,
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);
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reply.error(EPERM);
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}
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fn rename(
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&mut self,
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_req: &fuser::Request<'_>,
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parent: u64,
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name: &std::ffi::OsStr,
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newparent: u64,
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newname: &std::ffi::OsStr,
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flags: u32,
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reply: fuser::ReplyEmpty,
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) {
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debug!(
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"[Not Implemented] rename(parent: {:#x?}, name: {:?}, newparent: {:#x?}, \
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newname: {:?}, flags: {})",
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parent, name, newparent, newname, flags,
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);
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reply.error(ENOSYS);
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}
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fn link(
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&mut self,
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_req: &fuser::Request<'_>,
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ino: u64,
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newparent: u64,
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newname: &std::ffi::OsStr,
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reply: fuser::ReplyEntry,
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) {
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debug!(
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"[Not Implemented] link(ino: {:#x?}, newparent: {:#x?}, newname: {:?})",
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ino, newparent, newname
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);
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reply.error(EPERM);
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}
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fn open(&mut self, _req: &fuser::Request<'_>, _ino: u64, _flags: i32, reply: fuser::ReplyOpen) {
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reply.opened(0, 0);
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}
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fn read(
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&mut self,
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_req: &fuser::Request<'_>,
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ino: u64,
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fh: u64,
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offset: i64,
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size: u32,
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flags: i32,
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lock_owner: Option<u64>,
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reply: fuser::ReplyData,
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) {
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warn!(
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"[Not Implemented] read(ino: {:#x?}, fh: {}, offset: {}, size: {}, \
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flags: {:#x?}, lock_owner: {:?})",
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ino, fh, offset, size, flags, lock_owner
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);
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reply.error(ENOSYS);
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}
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fn write(
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&mut self,
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_req: &fuser::Request<'_>,
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ino: u64,
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fh: u64,
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offset: i64,
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data: &[u8],
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write_flags: u32,
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flags: i32,
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lock_owner: Option<u64>,
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reply: fuser::ReplyWrite,
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) {
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debug!(
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"[Not Implemented] write(ino: {:#x?}, fh: {}, offset: {}, data.len(): {}, \
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write_flags: {:#x?}, flags: {:#x?}, lock_owner: {:?})",
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ino,
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fh,
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offset,
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data.len(),
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write_flags,
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flags,
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lock_owner
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);
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reply.error(ENOSYS);
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}
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fn flush(
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&mut self,
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_req: &fuser::Request<'_>,
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ino: u64,
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fh: u64,
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lock_owner: u64,
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reply: fuser::ReplyEmpty,
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) {
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debug!(
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"[Not Implemented] flush(ino: {:#x?}, fh: {}, lock_owner: {:?})",
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ino, fh, lock_owner
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);
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reply.error(ENOSYS);
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}
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fn release(
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&mut self,
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_req: &fuser::Request<'_>,
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_ino: u64,
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_fh: u64,
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_flags: i32,
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_lock_owner: Option<u64>,
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_flush: bool,
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reply: fuser::ReplyEmpty,
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) {
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reply.ok();
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}
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fn fsync(
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&mut self,
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_req: &fuser::Request<'_>,
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ino: u64,
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fh: u64,
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datasync: bool,
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reply: fuser::ReplyEmpty,
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) {
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debug!("[Not Implemented] fsync(ino: {:#x?}, fh: {}, datasync: {})", ino, fh, datasync);
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reply.error(ENOSYS);
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}
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fn opendir(
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&mut self,
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_req: &fuser::Request<'_>,
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_ino: u64,
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_flags: i32,
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reply: fuser::ReplyOpen,
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) {
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reply.opened(0, 0);
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}
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fn readdir(
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&mut self,
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_req: &fuser::Request<'_>,
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ino: u64,
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fh: u64,
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offset: i64,
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reply: fuser::ReplyDirectory,
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) {
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warn!("[Not Implemented] readdir(ino: {:#x?}, fh: {}, offset: {})", ino, fh, offset);
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reply.error(ENOSYS);
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}
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fn readdirplus(
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&mut self,
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_req: &fuser::Request<'_>,
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ino: u64,
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fh: u64,
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offset: i64,
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reply: fuser::ReplyDirectoryPlus,
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) {
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debug!(
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"[Not Implemented] readdirplus(ino: {:#x?}, fh: {}, offset: {})",
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ino, fh, offset
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);
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reply.error(ENOSYS);
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}
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fn releasedir(
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&mut self,
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_req: &fuser::Request<'_>,
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_ino: u64,
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_fh: u64,
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_flags: i32,
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reply: fuser::ReplyEmpty,
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) {
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reply.ok();
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}
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fn fsyncdir(
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&mut self,
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_req: &fuser::Request<'_>,
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ino: u64,
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fh: u64,
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datasync: bool,
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reply: fuser::ReplyEmpty,
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) {
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debug!(
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"[Not Implemented] fsyncdir(ino: {:#x?}, fh: {}, datasync: {})",
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ino, fh, datasync
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);
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reply.error(ENOSYS);
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}
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fn statfs(&mut self, _req: &fuser::Request<'_>, _ino: u64, reply: fuser::ReplyStatfs) {
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reply.statfs(0, 0, 0, 0, 0, 512, 255, 0);
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}
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fn setxattr(
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&mut self,
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_req: &fuser::Request<'_>,
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ino: u64,
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name: &std::ffi::OsStr,
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_value: &[u8],
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flags: i32,
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position: u32,
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reply: fuser::ReplyEmpty,
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) {
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debug!(
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"[Not Implemented] setxattr(ino: {:#x?}, name: {:?}, flags: {:#x?}, position: {})",
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ino, name, flags, position
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);
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reply.error(ENOSYS);
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}
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fn getxattr(
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&mut self,
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_req: &fuser::Request<'_>,
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ino: u64,
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name: &std::ffi::OsStr,
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size: u32,
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reply: fuser::ReplyXattr,
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) {
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debug!("[Not Implemented] getxattr(ino: {:#x?}, name: {:?}, size: {})", ino, name, size);
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reply.error(ENOSYS);
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}
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fn listxattr(
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&mut self,
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_req: &fuser::Request<'_>,
|
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ino: u64,
|
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size: u32,
|
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reply: fuser::ReplyXattr,
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) {
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debug!("[Not Implemented] listxattr(ino: {:#x?}, size: {})", ino, size);
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reply.error(ENOSYS);
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}
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fn removexattr(
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&mut self,
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_req: &fuser::Request<'_>,
|
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ino: u64,
|
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name: &std::ffi::OsStr,
|
||||
reply: fuser::ReplyEmpty,
|
||||
) {
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debug!("[Not Implemented] removexattr(ino: {:#x?}, name: {:?})", ino, name);
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reply.error(ENOSYS);
|
||||
}
|
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|
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fn access(&mut self, _req: &fuser::Request<'_>, ino: u64, mask: i32, reply: fuser::ReplyEmpty) {
|
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debug!("[Not Implemented] access(ino: {:#x?}, mask: {})", ino, mask);
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reply.error(ENOSYS);
|
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}
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||||
|
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fn create(
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||||
&mut self,
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_req: &fuser::Request<'_>,
|
||||
parent: u64,
|
||||
name: &std::ffi::OsStr,
|
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mode: u32,
|
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umask: u32,
|
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flags: i32,
|
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reply: fuser::ReplyCreate,
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) {
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debug!(
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"[Not Implemented] create(parent: {:#x?}, name: {:?}, mode: {}, umask: {:#x?}, \
|
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flags: {:#x?})",
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parent, name, mode, umask, flags
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||||
);
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reply.error(ENOSYS);
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||||
}
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|
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fn getlk(
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&mut self,
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_req: &fuser::Request<'_>,
|
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ino: u64,
|
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fh: u64,
|
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lock_owner: u64,
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start: u64,
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end: u64,
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||||
typ: i32,
|
||||
pid: u32,
|
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reply: fuser::ReplyLock,
|
||||
) {
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debug!(
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"[Not Implemented] getlk(ino: {:#x?}, fh: {}, lock_owner: {}, start: {}, \
|
||||
end: {}, typ: {}, pid: {})",
|
||||
ino, fh, lock_owner, start, end, typ, pid
|
||||
);
|
||||
reply.error(ENOSYS);
|
||||
}
|
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|
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fn setlk(
|
||||
&mut self,
|
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_req: &fuser::Request<'_>,
|
||||
ino: u64,
|
||||
fh: u64,
|
||||
lock_owner: u64,
|
||||
start: u64,
|
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end: u64,
|
||||
typ: i32,
|
||||
pid: u32,
|
||||
sleep: bool,
|
||||
reply: fuser::ReplyEmpty,
|
||||
) {
|
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debug!(
|
||||
"[Not Implemented] setlk(ino: {:#x?}, fh: {}, lock_owner: {}, start: {}, \
|
||||
end: {}, typ: {}, pid: {}, sleep: {})",
|
||||
ino, fh, lock_owner, start, end, typ, pid, sleep
|
||||
);
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reply.error(ENOSYS);
|
||||
}
|
||||
|
||||
fn bmap(
|
||||
&mut self,
|
||||
_req: &fuser::Request<'_>,
|
||||
ino: u64,
|
||||
blocksize: u32,
|
||||
idx: u64,
|
||||
reply: fuser::ReplyBmap,
|
||||
) {
|
||||
debug!(
|
||||
"[Not Implemented] bmap(ino: {:#x?}, blocksize: {}, idx: {})",
|
||||
ino, blocksize, idx,
|
||||
);
|
||||
reply.error(ENOSYS);
|
||||
}
|
||||
|
||||
fn ioctl(
|
||||
&mut self,
|
||||
_req: &fuser::Request<'_>,
|
||||
ino: u64,
|
||||
fh: u64,
|
||||
flags: u32,
|
||||
cmd: u32,
|
||||
in_data: &[u8],
|
||||
out_size: u32,
|
||||
reply: fuser::ReplyIoctl,
|
||||
) {
|
||||
debug!(
|
||||
"[Not Implemented] ioctl(ino: {:#x?}, fh: {}, flags: {}, cmd: {}, \
|
||||
in_data.len(): {}, out_size: {})",
|
||||
ino,
|
||||
fh,
|
||||
flags,
|
||||
cmd,
|
||||
in_data.len(),
|
||||
out_size,
|
||||
);
|
||||
reply.error(ENOSYS);
|
||||
}
|
||||
|
||||
fn fallocate(
|
||||
&mut self,
|
||||
_req: &fuser::Request<'_>,
|
||||
ino: u64,
|
||||
fh: u64,
|
||||
offset: i64,
|
||||
length: i64,
|
||||
mode: i32,
|
||||
reply: fuser::ReplyEmpty,
|
||||
) {
|
||||
debug!(
|
||||
"[Not Implemented] fallocate(ino: {:#x?}, fh: {}, offset: {}, \
|
||||
length: {}, mode: {})",
|
||||
ino, fh, offset, length, mode
|
||||
);
|
||||
reply.error(ENOSYS);
|
||||
}
|
||||
|
||||
fn lseek(
|
||||
&mut self,
|
||||
_req: &fuser::Request<'_>,
|
||||
ino: u64,
|
||||
fh: u64,
|
||||
offset: i64,
|
||||
whence: i32,
|
||||
reply: fuser::ReplyLseek,
|
||||
) {
|
||||
debug!(
|
||||
"[Not Implemented] lseek(ino: {:#x?}, fh: {}, offset: {}, whence: {})",
|
||||
ino, fh, offset, whence
|
||||
);
|
||||
reply.error(ENOSYS);
|
||||
}
|
||||
|
||||
fn copy_file_range(
|
||||
&mut self,
|
||||
_req: &fuser::Request<'_>,
|
||||
ino_in: u64,
|
||||
fh_in: u64,
|
||||
offset_in: i64,
|
||||
ino_out: u64,
|
||||
fh_out: u64,
|
||||
offset_out: i64,
|
||||
len: u64,
|
||||
flags: u32,
|
||||
reply: fuser::ReplyWrite,
|
||||
) {
|
||||
debug!(
|
||||
"[Not Implemented] copy_file_range(ino_in: {:#x?}, fh_in: {}, \
|
||||
offset_in: {}, ino_out: {:#x?}, fh_out: {}, offset_out: {}, \
|
||||
len: {}, flags: {})",
|
||||
ino_in, fh_in, offset_in, ino_out, fh_out, offset_out, len, flags
|
||||
);
|
||||
reply.error(ENOSYS);
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue